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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">cardiovascular</journal-id><journal-title-group><journal-title xml:lang="ru">Кардиоваскулярная терапия и профилактика</journal-title><trans-title-group xml:lang="en"><trans-title>Cardiovascular Therapy and Prevention</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1728-8800</issn><issn pub-type="epub">2619-0125</issn><publisher><publisher-name>«SILICEA-POLIGRAF» LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.15829/1728-8800-2023-3503</article-id><article-id custom-type="elpub" pub-id-type="custom">cardiovascular-3503</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ФИБРИЛЛЯЦИЯ ПРЕДСЕРДИЙ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ATRIAL FIBRILLATION</subject></subj-group></article-categories><title-group><article-title>Взаимосвязь эффективного рефрактерного периода левого предсердия и легочных вен и развития раннего рецидива фибрилляции предсердий после радиочастотной изоляции устьев легочных вен. Первые результаты</article-title><trans-title-group xml:lang="en"><trans-title>Relationship between the left atrial and pulmonary vein effective refractory period and the development of early atrial fibrillation recurrence after radiofrequency pulmonary vein isolation. First results</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0005-1750-1586</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Коженов</surname><given-names>А. Т.</given-names></name><name name-style="western" xml:lang="en"><surname>Kozhenov</surname><given-names>A. T.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Коженов Алимжан Тельжанович — врач сердечно-сосудистый хирург кардиохирургического отделения №3 ФГБУ «ФЦССХ им. С.Г. Суханова» МЗ РФ.</p><p>614013, Пермский край, Пермь, ул. Маршала Жукова, 35</p></bio><bio xml:lang="en"><p>Perm</p></bio><email xlink:type="simple">alim_kozhenov@outlook.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0006-1678-9175</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Азизов</surname><given-names>С. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Azizov</surname><given-names>S. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Азизов Сардор Норматович — кандидат медицинских наук, врач сердечно-сосудистый хирург кардиохирургического отделения №3 ФГБУ «ФЦССХ им. С.Г. Суханова» МЗ РФ.</p><p>614013, Пермский край, Пермь, ул. Маршала Жукова, 35</p></bio><bio xml:lang="en"><p>Perm</p></bio><email xlink:type="simple">alim_kozhenov@outlook.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4860-0112</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Хлынова</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Khlynova</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Хлынова Ольга Витальевна — доктор медицинских наук., профессор, член-корреспондент РАН, заведующий кафедрой госпитальной терапии и кардиологии.</p><p>614990, Пермский край, Пермь Петропавловская ул., 26</p></bio><bio xml:lang="en"><p>Perm</p></bio><email xlink:type="simple">olgakhlynova@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">ФГБУ "Федеральный центр сердечно-сосудистой хирургии им. С.Г. Суханова" Минздрава России<country>Россия</country></aff><aff xml:lang="en">S.G. Sukhanov Federal Center for Cardiovascular Surgery<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">ФГБОУ ВО "Пермский государственный медицинский университет им. акад. Е.А. Вагнера" Минздрава России<country>Россия</country></aff><aff xml:lang="en">E.A. Vagner Perm State Medical University<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>07</day><month>05</month><year>2023</year></pub-date><volume>22</volume><issue>4</issue><fpage>3503</fpage><lpage>3503</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Коженов А.Т., Азизов С.Н., Хлынова О.В., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Коженов А.Т., Азизов С.Н., Хлынова О.В.</copyright-holder><copyright-holder xml:lang="en">Kozhenov A.T., Azizov S.N., Khlynova O.V.</copyright-holder><license license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://cardiovascular.elpub.ru/jour/article/view/3503">https://cardiovascular.elpub.ru/jour/article/view/3503</self-uri><abstract><sec><title>Цель</title><p>Цель. Оценить взаимосвязь эффективного рефрактерного периода левого предсердия (ЛП) и легочных вен (ЛВ) и развития раннего рецидива фибрилляции предсердий (ФП) после радиочастотной изоляции легочных вен (ИЛВ).</p></sec><sec><title>Материал и методы</title><p>Материал и методы. В исследование было включено 35 пациентов с персистирующей формой ФП, рефрактерной к антиаритмической терапии (ААТ). Всем пациентам проводилась оценка значений эффективного рефрактерного периода (ЭРП) ЛП и ЛВ с последующей радиочастотной антральной ИЛВ. В зависимости от значений ЭРП пациенты делились на 2 группы. В группу 1 (n=15) были включены пациенты, у которых среднее значение ЭРП ЛП и ЛВ были ≥240 мс, в группу 2 (n=20) — пациенты, у которых среднее значение ЭРП ЛП и ЛВ были &lt;240 мс. Оценка результатов (возникновение ранних рецидивов) ФП, в зависимости от полученных значений ЭРП, проводилась в первые 3 мес.</p></sec><sec><title>Результаты</title><p>Результаты. Значения ЭРП, полученные в ходе исследования, группа 1 — ЛП (ушко ЛП) 252±8,9 мс; левая верхняя ЛВ (ЛВЛВ) 252±12,1 мс; левая нижняя ЛВ (ЛНЛВ) 257,3±8,15 мс; правая верхняя ЛВ (ПВЛВ) 254,6±11,3 мс; правая нижняя ЛВ (ПНЛВ) 260±9,05 мс. Группа 2 — ЛП 230±12,1 мс; ЛВЛВ 205±10,5 мс; ЛНЛВ 186,6±22,05 мс; ПВЛВ 212,2±14 мс; ПНЛВ 218,8±11,1 мс. В ходе наблюдения за пациентами в группе 1 в первые 3 мес. после ИЛВ рецидивов не наблюдалось. В группе 2 наблюдались 7 ранних рецидивов ФП. При корреляционном анализе была выявлена статистически значимая обратно пропорциональная зависимость (-0,349; р=0,03) между значениями ЭРП и количеством рецидивов в группах.</p></sec><sec><title>Заключение</title><p>Заключение. Первые результаты проведенного исследования демонстрируют наличие обратно пропорциональной зависимости между величиной среднего ЭРП ЛВ и ЛП и развитием раннего рецидива ФП, что позволяет рассматривать значение ЭРП ЛВ и ЛП &lt;240 мс в качестве вероятного предиктора риска раннего рецидива ФП. Однако этот факт требует продолжения исследования с увеличением выборки и проведением соответствующего статистического анализа по предикторной ценности обсуждаемых показателей.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Aim</title><p>Aim. To assess the relationship between the left atrial (LA) and pul­monary vein (PV) effective refractory period and the development of early atrial fibrillation (AF) recurrence after radiofrequency pul­monary vein isolation (PVI).</p></sec><sec><title>Material and methods</title><p>Material and methods. The study included 35 patients with persistent AF refractory to antiarrhythmic therapy (AAT). In all patients, LA and PV effective refractory period (ERP) was assessed, followed by radiofrequency antral PVI. Depending on the ERP values, the patients were divided into 2 groups. Group 1 (n=15) included patients with mean LA and PV ERP values ≥240 ms, while group 2 (n=20) consisted of patients with mean LA and PV ERP values &lt;240 ms. The evaluation of early AF recurrence, depending on the obtained ERP values, was carried out in the first 3 months.</p></sec><sec><title>Results</title><p>Results. We obtained following ERP values: group 1 — LA (LA ap­ pendage) 252±8,9 ms; left superior PV (LSPV) — 252±12,1 ms; left inferior PV (LIPV) — 257,3±8,15 ms; right superior PV (RSPV) — 254,6±11,3 ms; right inferior PV (RIPV) — 260±9,05 ms; group 2 — LA 230±12,1 ms; LSPV — 205±10,5 ms; LIPV — 186,6±22,05 ms; RSPV — 212,2±14 ms; RIPV — 218,8±11,1 ms. During the 3-month follow-up of group 1 patients, there were no recurrences after PVI. Group 2 had 7 early AF recurrences. Correlation analysis revealed a significant inversely proportional relationship (-0,349; p=0,03) between ERP values and the recurrence rate in the groups.</p></sec><sec><title>Conclusion</title><p>Conclusion. The first results demonstrate an inversely proportional relationship between the mean PV and LA ERP and the development of early AF recurrence, which makes it possible to consider the PV and LA ERP &lt;240 ms as a likely predictor of early AF recurrence. However, this fact requires the study continuation with an increase in the sample and an appropriate statistical analysis.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>фибрилляция предсердий</kwd><kwd>эффективный ре­фрактерный период</kwd><kwd>радиочастотная аблация</kwd></kwd-group><kwd-group xml:lang="en"><kwd>atrial fibrillation</kwd><kwd>effective refractory period</kwd><kwd>radiofrequency ablation</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Kirchhof P, Benussi S, Kotecha D, et al. 2016 Esc Guidelines for the management of atrial fibrillation developed in collaboration with EACTS. 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